CN111841832A - Crushing equipment for lithium battery recovery and using method thereof - Google Patents
Crushing equipment for lithium battery recovery and using method thereof Download PDFInfo
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- CN111841832A CN111841832A CN202010637015.4A CN202010637015A CN111841832A CN 111841832 A CN111841832 A CN 111841832A CN 202010637015 A CN202010637015 A CN 202010637015A CN 111841832 A CN111841832 A CN 111841832A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/02—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with perforated container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/40—Adding fluid, other than for crushing or disintegrating by fluid energy with more than one means for adding fluid to the material being crushed or disintegrated
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Abstract
The invention discloses crushing equipment for lithium battery recovery and a use method thereof, the crushing equipment comprises a feeding device, a first transmission device, a coarse crushing device, a cleaning device, a second transmission device and a fine crushing device, wherein a gear crushing hob in the coarse crushing device cuts and crushes waste lithium batteries, the cut and crushed waste lithium batteries enter the cleaning device, the cleaning device comprises an arc-shaped vibrating screen and a spraying device, the spraying device on the arc-shaped vibrating screen cleans and sieves the coarse crushed waste lithium batteries, undersize materials enter a waste material collecting pool through a chute opening, oversize materials enter the second transmission device through the chute opening, the second transmission device comprises a constant temperature drying box and a belt conveyor, the coarse crushed materials enter the fine crushing device after being dehydrated and dried by the second transmission device, and the waste lithium batteries undergo coarse crushing and fine crushing in the whole process, the working mode improves the crushing effect of the crushing equipment, and sufficient preparation is made for extracting useful components in the waste lithium batteries.
Description
Technical Field
The invention belongs to the field of lithium battery recycling, and particularly relates to crushing equipment for lithium battery recycling and a using method thereof.
Background
With the widespread use of digital products such as mobile phones, notebook computers and other products, lithium batteries are widely used in such products with excellent performance, and are gradually developing to the application fields of other products. The lithium battery is widely applied to energy storage power systems of hydraulic power, firepower, wind power, solar power stations and the like, uninterrupted power supplies of post and telecommunications communication, and a plurality of fields of electric tools, electric bicycles, electric motorcycles, electric automobiles, military equipment, aerospace and the like.
As the market competition of lithium batteries is more and more intense, the secondary recycling of waste lithium batteries is becoming more and more important. A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode, during charging and discharging, Li+Li being inserted and extracted back and forth between two electrodes during charging+The lithium-rich battery is extracted from the positive electrode, the lithium-rich battery is extracted from the negative electrode through the electrolyte, the negative electrode is in a lithium-rich state, the reverse is true during discharging, the battery recycling means that the used battery is collected to prevent the used battery from entering an ecological system, the waste battery contains a large amount of electrolyte solutions such as heavy metal, waste acid, waste alkali and the like, if the used battery is discarded at will, the rotten battery can damage water sources of people and erode crops and land on which people live, and the living environment of people faces huge threats, so that the living environment of people faces It is necessary to recycle the used waste batteries, so that the environment can be prevented from being polluted, and useful components in the waste batteries can be recycled, thereby saving resources.
The crushing equipment for recycling the lithium battery at present has the defects of inconvenient operation, poor crushing effect, single crushing function, incapability of collecting crushed electrolyte and the like.
Disclosure of Invention
The invention aims to provide crushing equipment for lithium battery recovery and a using method thereof.
The technical problems to be solved by the invention are as follows:
1. in the prior art, the crushing equipment used in the crushing process of the waste lithium batteries has a single function, can only realize the crushing function of the waste batteries, and cannot collect the electrolyte in the waste lithium batteries, so that the normal use of the crushing equipment is influenced, and the environmental pollution is also caused.
2. Crushing equipment for lithium battery recovery has poor crushing effect, and the crushed material has large granularity, so that the requirement of subsequently recovering and extracting useful components in the waste lithium batteries is difficult to meet.
The purpose of the invention can be realized by the following technical scheme:
a crushing device for lithium battery recovery comprises a feeding device, a first conveying device, a coarse crushing device, a cleaning device, a second conveying device and a fine crushing device, and is characterized in that the feeding device is connected with the first conveying device in a welding mode, one side of the first conveying device is fixedly connected with a protection plate, the protection plate is connected with the coarse crushing device in a welding mode, the first conveying device is fixedly connected with the coarse crushing device through a support frame, a gear crushing hob is installed inside the coarse crushing device and driven to rotate by a motor installed on one side of the coarse crushing device, a discharging notch is formed in the bottom of the coarse crushing device, and the discharging notch is fixedly connected with the cleaning device;
The cleaning device comprises a feeding square box, the upper part of the feeding square box is fixedly connected with a discharging notch at the bottom of the coarse crushing device, the lower part of the feeding square box is connected with the vibrating arc screen, the vibrating motor is welded with the vibrating arc screen frame, a spraying device is arranged on the vibrating arc screen, a plurality of nozzles are arranged on the spraying device, the water storage tank is fixedly connected with the conveying water pipe through a water suction pump, the undersize material of the vibrating arc screen enters the waste collecting tank through a chute opening, and the oversize material of the vibrating arc screen enters the second conveying device through the chute opening;
the second transmission device comprises a constant-temperature drying chamber and a belt conveyor, the belt conveyor and the constant-temperature drying chamber are both fixed on the ground, two ends of the belt conveyor are located outside the constant-temperature drying chamber, the rest parts of the belt conveyor are all located inside the constant-temperature drying chamber, the middle part of the belt conveyor is provided with an overturning rake tooth, a tooth nail of the overturning rake tooth is coated with a plastic sleeve, one end of the belt conveyor is connected with a discharging chute opening of a vibrating arc-shaped screen, and the other end of the belt conveyor is connected with a feeding chute of the fine crushing device;
the fine crushing device comprises a feeding groove, the feeding groove comprises a feeding hole and an air inlet, the feeding groove is fixedly connected with a main bearing, the main bearing and a rotating bearing are respectively positioned on the left side and the right side of the grinding box body, the discharging groove comprises a discharging hole and an air outlet, and the lower end of the main bearing is connected with the rotating bearing, a speed reducer and a motor;
The grinding box body comprises a first grinding material cavity, an intermediate partition plate, a shell frame, a second grinding material cavity, a discharging partition plate, a first grinding material medium and a second grinding material medium, the first grinding material cavity is internally provided with the first grinding material medium in batches, the intermediate partition plate is arranged between the first grinding material cavity and the second grinding material cavity, the second grinding material cavity is internally provided with the second grinding material medium in batches, the discharging partition plate is arranged between the second grinding material cavity and a discharging groove, the intermediate partition plate and the discharging partition plate are internally provided with sieve meshes, and the sieve meshes of the discharging partition plate are smaller than those of the intermediate partition plate.
As a further scheme of the invention, two groups of gear crushing hobs are arranged in the coarse crushing device, the gear crushing hobs are used for primarily crushing the waste lithium batteries under the action of strong extrusion cutting by utilizing the principle of spiral gear meshing, crushed lithium battery materials enter the blanking notch through the blanking slope, and the cross section of the blanking slope is in an arc shape.
As a further scheme of the invention, a plurality of spraying devices are arranged on the arc-shaped vibrating screen of the cleaning device, a distributing valve is arranged at the part of the conveying water pipe, the water pressure and the water spraying amount of the spraying devices can be controlled through the distributing valve, and the size of the distributing valve can be adjusted according to the actual cleaning degree of the coarse crushed materials to ensure the cleaning effect.
As a further scheme of the invention, the first grinding medium in the fine crushing device is a steel ball with the diameter of 80mm-120mm, the second grinding medium is a steel ball with the diameter of 40mm-60mm, and the filling rate of the steel ball is 20% -50% of the volume of the grinding cavity.
The use method of the crushing equipment for lithium battery recovery comprises the following steps:
the waste lithium batteries in the feeding device are transmitted to the coarse crushing device through the first transmission device, gear crushing hobs in the coarse crushing device extrude and cut the waste lithium batteries, the cut waste lithium batteries slide to a bottom blanking notch through a blanking slope in the coarse crushing device, the blanking notch of the coarse crushing device is fixedly connected with a feeding square box of the cleaning device, and the coarse crushed waste lithium batteries enter the arc-shaped vibrating screen through the feeding square box;
cleaning and screening the coarsely crushed waste lithium batteries by a spraying device on the arc-shaped vibrating screen, allowing undersize materials of the arc-shaped vibrating screen to enter a waste material collecting pool through a chute opening, and allowing oversize materials of the arc-shaped vibrating screen to enter a second conveying device through the chute opening;
the second transmission device comprises a constant-temperature drying box and a belt conveyor, when the oversize products of the arc-shaped vibrating screen are conveyed to the middle position of the belt conveyor, the overturning rake teeth stir and overturn the oversize products, the dehydration and drying process of the arc-shaped vibrating screen is accelerated, and the oversize products of the arc-shaped vibrating screen after dehydration and drying enter the fine crushing device;
When the material got into the device feed inlet that finely crushes, be rotary motion along with the grinding box of the device that finely crushes and get into first abrasive material intracavity, the material hits with the grinding action and reaches the corase grind effect by the heavy of first abrasive material medium in first abrasive material intracavity portion, the material after the corase grind gets into second abrasive material chamber through intermediate bottom, hit with the grinding action under the heavy of second abrasive material medium and further the fine grinding, after the regrinding in second abrasive material chamber, the material granularity further thins, the material after the regrinding is discharged to the blown down tank through ejection of compact baffle, and then discharges through the discharge gate.
The invention has the beneficial effects that:
1. when the waste lithium battery crushing device works, waste lithium batteries in the feeding device are transmitted to the coarse crushing device through the first transmission device, gear crushing hobs in the coarse crushing device extrude and cut the waste lithium batteries, the cut waste lithium batteries slide to a bottom blanking notch through a blanking slope in the coarse crushing device, the blanking notch of the coarse crushing device is fixedly connected with a feeding square box of the cleaning device, and the coarse crushed waste lithium batteries enter the arc-shaped vibrating screen through the feeding square box; cleaning and screening the coarsely crushed waste lithium batteries by a spraying device on the arc-shaped vibrating screen, allowing undersize materials of the arc-shaped vibrating screen to enter a waste material collecting pool through a chute opening, and allowing oversize materials of the arc-shaped vibrating screen to enter a second conveying device through the chute opening; the process of cleaning and screening is concentrated and the electrolyte solution in the waste lithium battery is collected, so that the normal work of the crushing equipment is ensured, and the pollution to the working environment is also prevented.
2. After the coarse crushed materials are cleaned and screened, the coarse crushed materials enter a second transmission device, the second transmission device comprises a constant-temperature drying box and a belt conveyor, the coarse crushed materials enter a fine crushing device after being dehydrated and dried by the second transmission device, and the waste lithium batteries undergo coarse crushing and fine crushing processes in crushing equipment.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic structural diagram of a crushing device for lithium battery recovery;
FIG. 2 is a schematic structural view of a coarse crushing apparatus;
FIG. 3 is a schematic view of the cleaning apparatus;
fig. 4 is a schematic structural view of a second transmission device belt conveyor and a turnover rake tooth;
fig. 5 is a schematic structural diagram of a fine crushing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A crushing device for lithium battery recovery, please refer to fig. 1-5, which comprises a feeding device 1, a first transmission device 2, a coarse crushing device 6, a cleaning device, a second transmission device, and a fine crushing device, wherein a gear crushing hob 5 is installed inside the coarse crushing device 6, the gear crushing hob 5 cuts and crushes the waste lithium batteries, one end of the gear crushing hob 5 is provided with a motor to drive the gear crushing hob to rotate, a protection plate 4 is installed above the coarse crushing device 6, the protection plate 4 is used for preventing materials from spilling out, the first transmission device 2 is installed at one end of the inner side of the protection plate 4, the lower end of the first transmission component 2 is provided with a support frame 3, the other end of the support frame 3 is welded to one side of the coarse crushing device 6, the first transmission device 2 transports the waste lithium batteries from the feeding device 1 to the coarse crushing device 6, the lower end inside the coarse crushing device 6 is provided with a blanking notch, the waste lithium batteries after coarse crushing, the lower part of the feeding square box 7 is connected with an arc-shaped vibrating screen 9;
the arc-shaped vibrating screen 9 is provided with a spraying device 13, clear water in the reservoir 10 is pumped out through a water pump 11 and is conveyed to the spraying device 13 through a conveying water pipe 12, the spraying device 13 is used for cleaning liquid materials such as electrolyte and the like after the waste lithium batteries are crushed, a rack of the arc-shaped vibrating screen 9 is fixedly connected with a vibrating motor 14, undersize materials of the arc-shaped vibrating screen 9 enter a waste material collecting pool 15 through a chute opening, and oversize materials of the arc-shaped vibrating screen 9 enter a second conveying device through the chute opening;
The second transmission device comprises a constant-temperature drying chamber 16 and a belt conveyor 17, wherein a turnover rake tooth 26 is installed on a rack of the belt conveyor 17 and is positioned in the middle of the belt conveyor 17, a plastic sleeve is wrapped on a tooth nail 27 of the turnover rake tooth 26 to prevent the tooth nail 27 from scratching and damaging a belt, two ends of the belt conveyor 17 are positioned outside the constant-temperature drying chamber 16, the rest positions are positioned inside the constant-temperature drying chamber 16, oversize products of the arc-shaped vibrating screen 9 are conveyed into the constant-temperature drying chamber 16 through the belt conveyor 17, when the oversize products are conveyed to the middle of the belt conveyor 17, the turnover rake tooth 26 is used for stirring and turnover, the heated position of the conveyed materials is changed, the dehydration and drying processes of the materials are accelerated, and the oversize products of the arc-shaped vibrating screen 9 enter the fine crushing device through a chute opening after dehydration;
the fine crushing device comprises a feeding groove 18, the feeding groove 18 comprises a feeding hole 28 and an air inlet 29, the feeding groove 18 is fixedly connected with a main bearing 19, the main bearing 19 and a rotating bearing 21 are respectively positioned on the left side and the right side of a grinding box body 20, a discharging groove 22 is positioned on the right side of the rotating bearing 21, the discharging groove 22 comprises a discharging hole 38 and an air outlet 37, and the lower end of the main bearing 21 is connected with a rotating bearing 23, a speed reducer 24 and a motor 25;
the grinding box body 20 comprises a first grinding material cavity 31, a middle partition plate 32, a shell 33, a second grinding material cavity 34, a discharge partition plate 35, a first grinding material medium 39 and a second grinding material medium 40, wherein the materials are conveyed to a fine crushing device feeding groove 28 through a belt conveyor 17, enter the first grinding material cavity 31 along with the rotation action of the grinding box body 20, a batch of the first grinding material medium 39 is placed in the first grinding material cavity 31, when the grinding box body 20 rotates, the first grinding material medium 39 is brought to a certain height by the centrifugal force generated by the rotation of the box body and falls down to generate the heavy beating and grinding action on the materials, the materials enter the second grinding material cavity 34 through the middle partition plate 32 after reaching the coarse grinding in the first grinding material cavity 31, sieve holes are arranged in the middle partition plate 32, after the materials enter the second grinding material cavity 34, the materials are further finely ground under the heavy beating and grinding action of the second grinding material medium 40, and the finely ground materials are discharged to the discharge groove 22 through the discharge partition plate 35, finally, the hot air is discharged through a discharge port 38, and the hot air flow generated by the box body is discharged through an exhaust port 37;
Two groups of gear crushing hobs 5 are arranged in the coarse crushing device 6, the gear crushing hobs 5 enable waste lithium batteries to be subjected to extrusion cutting action by utilizing a spiral gear meshing principle to be primarily crushed, crushed lithium battery crushed materials enter a blanking notch through a blanking slope, and the cross section of the blanking slope is in an arc shape;
a plurality of spraying devices 13 are arranged on the cleaning device arc-shaped vibrating screen 9, a distribution valve is arranged on the conveying water pipe 12, the water pressure and the water spraying amount of the spraying devices 13 can be controlled through the distribution valve, and the size of the distribution valve can be adjusted according to the actual cleaning degree of the coarse crushed materials to ensure the cleaning effect;
the first abrasive medium 39 in the fine crushing device is a steel ball with the diameter of 80mm-120mm, the second abrasive medium 40 is a steel ball with the diameter of 40mm-60mm, and the filling rate of the steel ball is 20% -50% of the volume of the abrasive cavity.
The working method of the crushing equipment for lithium battery recovery comprises the following steps:
waste lithium batteries in the feeding device 1 are conveyed to a coarse crushing device 6 through a first conveying device 2, gear crushing hobs 5 in the coarse crushing device 6 extrude and cut the waste lithium batteries, the cut waste lithium batteries slide to a bottom blanking notch through a blanking slope in the coarse crushing device 6, the blanking notch of the coarse crushing device 6 is fixedly connected with a cleaning device feeding square box 7, and the coarse crushed waste lithium batteries enter an arc-shaped vibrating screen 9 through the feeding square box 7;
A spraying device 13 on the arc-shaped vibrating screen 9 cleans and screens the coarsely crushed waste lithium batteries, undersize materials of the arc-shaped vibrating screen 9 enter a waste material collecting pool 15 through a chute opening, and oversize materials of the arc-shaped vibrating screen 9 enter a second conveying device through the chute opening;
the second transmission device comprises a constant-temperature drying box 16 and a belt conveyor 17, two ends of the belt conveyor 17 are positioned outside the constant-temperature drying chamber 16, the rest positions are positioned inside the constant-temperature drying chamber 16, the middle part of the belt conveyor 17 is provided with a turnover rake tooth 26, when oversize products of the arc-shaped vibrating screen 9 are conveyed to the middle position of the belt conveyor 17, the turnover rake tooth 26 stirs and turns the oversize products to accelerate the dehydration and drying processes of the arc-shaped vibrating screen 9, and the oversize products of the arc-shaped vibrating screen 9 after dehydration and drying enter the fine crushing device;
when the material enters the feeding hole 28 of the fine crushing device, the material enters the first abrasive cavity 31 along with the rotation of the grinding box body 20 of the fine crushing device, the material is subjected to the heavy impact and grinding action of the first abrasive medium 39 in the first abrasive cavity 31 to achieve the coarse grinding effect, the material after coarse grinding enters the second abrasive cavity 34 through the middle partition plate 32, the material is further reground under the heavy impact and grinding action of the second abrasive medium 40, and the reground material is discharged to the discharge chute 22 through the discharge partition plate 35 and then discharged through the discharge hole 38.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (5)
1. The crushing equipment for lithium battery recovery comprises a feeding device (1), a first conveying device (2), a coarse crushing device (6), a cleaning device, a second conveying device and a fine crushing device, and is characterized in that the feeding device (1) is connected with the first conveying device (2) in a welding mode, a protection plate (4) is fixedly connected to one side of the first conveying device (2), the protection plate (4) is connected with the coarse crushing device (6) in a welding mode, the first conveying device (2) is fixedly connected with the coarse crushing device (6) through a support frame (3), a gear crushing hob (5) is installed inside the coarse crushing device (6), the gear crushing hob (5) is driven by a motor installed on one side of the coarse crushing device (6) to rotate, a feeding notch is formed in the bottom of the coarse crushing device (6), and the feeding notch is fixedly connected with the cleaning device;
the cleaning device comprises a feeding square box (7), the upper part of the feeding square box (7) is fixedly connected with a discharging notch at the bottom of the coarse crushing device (6), the lower part of the feeding square box (7) is connected with a vibrating arc screen (9), a vibrating motor (14) is connected with a frame of the vibrating arc screen (9) in a welding manner, a spraying device (13) is installed on the vibrating arc screen (9), a plurality of nozzles are installed on the spraying device (13), a water storage tank (11) is fixedly connected with a conveying water pipe (2) through a water suction pump (11), undersize of the vibrating arc screen (9) enters a waste collecting tank (15) through a chute opening, and oversize of the vibrating arc screen (9) enters a second conveying device through the chute opening;
The second transmission device comprises a constant-temperature drying chamber (16) and a belt conveyor (17), the belt conveyor (17) and the constant-temperature drying chamber (16) are fixed on the ground, two ends of the belt conveyor (17) are located outside the constant-temperature drying chamber (16), the rest parts of the belt conveyor are located inside the constant-temperature drying chamber (16), a turnover rake tooth (26) is installed in the middle of the belt conveyor (17), the turnover rake tooth (26) is used for stirring and turnover of the transported materials on the belt conveyor (17), a plastic sleeve is wrapped on a tooth nail (27) of the turnover rake tooth (26), one end of the belt conveyor (17) is connected with a discharging chute opening of the materials on the vibrating arc sieve (9), and the other end of the belt conveyor is connected with a fine crushing device feeding groove (18);
the fine crushing device comprises a feeding groove (18), the feeding groove (18) comprises a feeding hole (28) and an air inlet (29), the feeding groove (18) is fixedly connected with a main bearing (19), the main bearing (19) and a rotating bearing (21) are respectively positioned on the left side and the right side of a grinding box body (20), a discharging groove (22) comprises a discharging hole (38) and an air outlet (37), and the lower end of the main bearing (21) is connected with a rotating bearing (23), a speed reducer (24) and a motor (25);
the grinding box body (20) comprises a first abrasive cavity (31), a middle partition plate (32), a shell frame (33), a second abrasive cavity (34), a discharge partition plate (35), a first abrasive medium (39) and a second abrasive medium (40), the first abrasive medium (39) in batches is placed inside the first abrasive cavity (31), the middle partition plate (32) is installed between the first abrasive cavity (31) and the second abrasive cavity (34), the second abrasive medium (40) in batches is placed inside the second abrasive cavity (34), the discharge partition plate (35) is installed between the second abrasive cavity (34) and the discharge chute (22), sieve holes are formed in the middle partition plate (32) and the discharge partition plate (34), and sieve holes of the discharge partition plate (34) are smaller than those of the middle partition plate (32).
2. The crushing equipment for lithium battery recycling according to claim 1, wherein two sets of gear crushing hobs (5) are installed inside the coarse crushing device (6), the gear crushing hobs (5) enable waste lithium batteries to be subjected to extrusion cutting by utilizing a spiral gear meshing principle to be crushed primarily, crushed lithium battery materials enter a blanking notch through a blanking slope, and the cross section of the blanking slope is arc-shaped.
3. The crushing equipment for lithium battery recovery according to claim 1, wherein a plurality of spraying devices (13) are arranged on the cleaning device arc-shaped vibrating screen (9), a material distributing valve is arranged on the conveying water pipe (12), and the water pressure and the water spraying amount of the spraying devices (13) can be controlled through the material distributing valve.
4. The crushing equipment for lithium battery recovery according to claim 1, wherein the first abrasive medium (39) is a steel ball with a diameter of 80mm-120mm, the second abrasive medium (40) is a steel ball with a diameter of 40mm-60mm, and the filling rate of the steel ball is 20% -50% of the volume of the abrasive chamber.
5. The use method of the crushing equipment for lithium battery recovery as claimed in claim 1, characterized by comprising the steps of:
Waste lithium batteries in the feeding device (1) are transmitted to a coarse crushing device (6) through a first transmission device (2), gear crushing hobs (5) in the coarse crushing device (6) extrude and cut the waste lithium batteries, the cut waste lithium batteries slide to a bottom blanking notch through a blanking slope in the coarse crushing device (6), the blanking notch of the coarse crushing device (6) is fixedly connected with a cleaning device feeding square box (7), and the coarse crushed waste lithium batteries enter an arc-shaped vibrating screen (9) through the feeding square box (7);
a spraying device (13) on the arc-shaped vibrating screen (9) cleans and sieves the coarsely crushed waste lithium batteries, undersize materials of the arc-shaped vibrating screen (9) enter a waste material collecting pool (15) through a chute opening, and oversize materials of the arc-shaped vibrating screen (9) enter a second transmission device through the chute opening;
the second transmission device comprises a constant temperature drying box (16) and a belt conveyor (17), wherein the middle part of the belt conveyor (17) is provided with a turnover rake tooth (26), and when oversize products of the arc-shaped vibrating screen (9) are conveyed to the middle position of the belt conveyor (17), the turnover rake tooth (26) stirs and turns over the oversize products and then the oversize products enter the fine crushing device;
when the material gets into fine crushing device feed inlet (28), in grinding box (20) along with fine crushing device was rotary motion and gets into first abrasive chamber (31), the material reaches the corase grind effect by the heavy attack and the grinding effect of first abrasive medium (39) in first abrasive chamber (31) inside, the material after the corase grind gets into second abrasive chamber (34) through intermediate bottom (32), further grind finely under the heavy attack and the grinding effect of second abrasive medium (40), after the regrinding of second abrasive chamber (34), the material granularity further becomes thin, the material after the regrinding is discharged to blown down tank (22) through ejection of compact baffle (35), and then discharges through discharge gate (38).
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| CN112820968A (en) * | 2020-12-22 | 2021-05-18 | 深圳清华大学研究院 | Charged crushing combination method and device for waste lithium ion power battery |
| CN113786902A (en) * | 2021-09-27 | 2021-12-14 | 杭州巨奥智能机械科技有限公司 | Pretreatment method of glass production raw materials |
| CN114006068A (en) * | 2021-10-11 | 2022-02-01 | 生态环境部南京环境科学研究所 | Pretreatment method for resource recovery of waste power lithium battery |
| WO2024016468A1 (en) * | 2022-07-21 | 2024-01-25 | 广东邦普循环科技有限公司 | Efficient pre-treatment and recycling equipment for waste batteries |
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Application publication date: 20201030 |